SN54LS247 - Motorola Inc

SN54LS247 BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS

BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment Decoder/Drivers. The LS247 and LS248 are functionally and electrically identical to the LS47 and LS48 with the same pinout configuration. The LS249 is a 16-pin version of the 14-pin LS49 and includes full functional capability for lamp test and ripple blanking w.

Features

ch may be used to control the lamp intensity by pulsing or to inhibit the output’s lamp test may be performed at any time when the BI/RBO node is at high level. Segment identification and resultant displays are shown below. Display pattern for BCD input counts above 9 are unique symbols to authenticate input conditions. LS247 SN54/74LS247 SN54/74LS248 SN54/74LS249 BCD-TO-SEVEN-SEGMENT DECODERS/ DRIVERS LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 620-09 16 1 16 1 N SUFFIX PLASTIC CASE 648-08
• Open-Collector Outputs Drive Indicators Directly
• Lamp-Test Provision
• Leading / Trailing Zero Su.